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Unformatted text preview: one absolute and one relative. Hempel does not challenge or attempt to test the assumptions of the theory. Hempel says that if a sentence that expresses a piece of evidence confirms or disconfirms an expressed hypothesis, it must be said to be confirming or disconfirming every equivalent formulation of the same hypothesis. Both Hempels deductive-nomological explanation and inductive-statistical explanation are covering law explanations. However, the characteristics are different. Hempels model of explanation does not contain at least one law of probabilistic statistical form, therefore, it cannot account for the way in which explanations change in the course of a scientific revolution....
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- Fall '10